add @JavascriptInterface annotation

add_js_interface.py

import re
import codecs
import tempfile

METHOD_PATTERN = re.compile('\s*[^/]+\s*(public|private|protected)\s+[^class]\s*[a-zA-Z][a-zA-Z0-9_]*\s+[a-zA-Z][a-zA-Z0-9_]*\s*\(')
JS_METHOD_PATTERN = re.compile('\s*[^/]+\s*public\s+[^class]\s*[a-zA-Z][a-zA-Z0-9_]*\s+[a-zA-Z][a-zA-Z0-9_]*\s*\(')
JS_INTERFACE_PATTERN = re.compile('\s*@JavascriptInterface')
JS_ANNOTATION = '\t@JavascriptInterface\n'
JS_ANNOTATION_CLASS_NAME = 'android.webkit.JavascriptInterface'
JS_ANNOTATION_IMP = 'import android.webkit.JavascriptInterface;\n'
CLASS_PATTERN = re.compile('\s*public\s+(final\s+)?class\s+[a-zA-Z][a-zA-Z0-9_]*')
IMP_PATTERN = re.compile('\s*import\s+[a-zA-Z][a-zA-Z0-9_]*')

def process_java_file(fileName):
	list_lines = []
	with codecs.open(fileName, "r", "utf-8") as jfile:
		skip_method = False
		last_import_index = 0
		index = 0
		found_annotation_imp = False
		for line in jfile:
			if IMP_PATTERN.match(line):
				last_import_index = index
				if line.find(JS_ANNOTATION_CLASS_NAME) != -1:
					found_annotation_imp = True
			elif not found_annotation_imp and CLASS_PATTERN.match(line):
				found_annotation_imp = True
				list_lines.insert(last_import_index + 1, JS_ANNOTATION_IMP)
			elif JS_INTERFACE_PATTERN.match(line): #already has the interface annotation, will skill this method
				skip_method = True
			elif skip_method and METHOD_PATTERN.match(line):
					print ">>> skip method:" + line
					skip_method = False
			elif JS_METHOD_PATTERN.match(line):
				list_lines.append(JS_ANNOTATION)
				print line
			
			list_lines.append(line)
			index = index + 1
		jfile.close()
	out = codecs.open(fileName, 'w+', 'utf-8')
	for write_line in list_lines:
		out.write(write_line)
	out.close()

def process_list_file(fileListFile):
	with open(fileListFile) as fileNameLines:
		for fileName in fileNameLines:
			if fileName.find('#') == -1 and len(fileName.strip()) != 0:
				print 'fileName :' + fileName
				process_java_file(fileName.strip())
			

process_list_file(r"D:\dev\project\js\list.txt")